org.proteinshader.math
Class LocalFrameDemo

java.lang.Object
  org.proteinshader.math.LocalFrameDemo

public class LocalFrameDemo
extends Object

Performs some simple tests on the LocalFrame class.

Field Summary

static int

BANNER_WIDTH The banner width is the number of asterisks to print on the line line above or below a banner title.

Constructor Summary

LocalFrameDemo()
Creates a LocalFrameDemo object with a few Quaternion objects that can be used for testing purposes.

Method Summary

String	createRepeats(char ch, int n) Returns a String with the character given as an argument repeated n number of times.
static void	main(String[] args) Tests the constructors, setter methods, and multiply(Point3d) methods of the LocalFrame class.
void	printBanner(String title, String message) Prints a banner with a row of asterisks above and below the title, and then a message right below the banner.
void	test2ArgConstructor() Uses a rotation quaternion and a translation vector to create a LocalFrame and then prints the LocalFrame by using its toString() method.
void	test6ArgConstructor() Uses a matrix of 3 column vectors, [N B T], and 3 doubles (x, y, z) to create a LocalFrame and then prints the LocalFrame.
void	test7ArgConstructor() Uses xyzw-values for a quaternion and xyz-values for a translation vector to create a LocalFrame and then prints the LocalFrame.
void	testMultiplyPointMethod() Tests the multiply(Point3d) method of LocalFrame.
void	testSetRotationMethods() Creates a LocalFrame with the zero-arg constructor and then tests the setRotation() methods.
void	testSetTranslationMethods() Creates a LocalFrame with the zero-arg constructor and then tests the setTranslation() methods.
void	testZeroArgConstructor() Uses the zero-argument constructor to create and then print a LocalFrame.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

BANNER_WIDTH

public static final int BANNER_WIDTH

The banner width is the number of asterisks to print on the line line above or below a banner title. The value is set to 70.

See Also:

Constant Field Values

Constructor Detail

LocalFrameDemo

public LocalFrameDemo()

Creates a LocalFrameDemo object with a few Quaternion objects that can be used for testing purposes.

Method Detail

test2ArgConstructor

public void test2ArgConstructor()

Uses a rotation quaternion and a translation vector to create a LocalFrame and then prints the LocalFrame by using its toString() method.

test6ArgConstructor

public void test6ArgConstructor()

Uses a matrix of 3 column vectors, [N B T], and 3 doubles (x, y, z) to create a LocalFrame and then prints the LocalFrame.

test7ArgConstructor

public void test7ArgConstructor()

Uses xyzw-values for a quaternion and xyz-values for a translation vector to create a LocalFrame and then prints the LocalFrame.

testZeroArgConstructor

public void testZeroArgConstructor()

Uses the zero-argument constructor to create and then print a LocalFrame.

testSetRotationMethods

public void testSetRotationMethods()

Creates a LocalFrame with the zero-arg constructor and then tests the setRotation() methods.

testSetTranslationMethods

public void testSetTranslationMethods()

Creates a LocalFrame with the zero-arg constructor and then tests the setTranslation() methods.

testMultiplyPointMethod

public void testMultiplyPointMethod()

Tests the multiply(Point3d) method of LocalFrame. Simple rotations (90 x-roll and -90 z-roll) are used along with points on the x-, y-, or z-axis in order to make the results easy to judge for correctness (by making a simple pencil-and-paper sketch of the xyz-coordinate system).

printBanner

public void printBanner(String title,
                        String message)

Prints a banner with a row of asterisks above and below the title, and then a message right below the banner.

Parameters:

title - the title to place in the banner.

message - a message to print right below the banner.

createRepeats

public String createRepeats(char ch,
                            int n)

Returns a String with the character given as an argument repeated n number of times.

Parameters:

ch - the char to repeat.

n - the number of times to repeat ch.

Returns:

A String with n repeats of ch.

main

public static void main(String[] args)

Tests the constructors, setter methods, and multiply(Point3d) methods of the LocalFrame class.